Final answer:
Thomas Jefferson's Declaration is opinionated, and grounded in the philosophical theories of natural rights by John Locke, making it more of an argument for independence than a factual report. Pennsylvania had the most democratic constitution in the 1780s.
Step-by-step explanation:
Thomas Jefferson's use of facts and opinions in the Declaration of Independence leans more towards presenting opinions, framed through the philosophical lens of natural rights, which are then supported by what the colonists considered factual grievances against King George III. Regarding the effectiveness of specific lines, that would depend on the context within the declaration and the impact the line aims to have. It's important to note that the Declaration is not a list of absolute facts but a persuasive document outlining the colonies' justifications for seeking independence.
Turning to your other questions, it is true that the rationale Jefferson used in the Declaration of Independence was influenced heavily by the ideas of John Locke, which revolved around the concepts of life, liberty, and property as natural rights entitled to all individuals. These ideas formed the backbone of Jefferson's argument for the American colonies' right to break away from British rule.
In terms of the most democratic state constitution in the 1780s, Pennsylvania had a notably democratic constitution at the time, characterized by a unicameral legislature and an emphasis on the rights of individuals.